Rod birefringence and light.
D000818:Animals; D001001:Anura; D001718:Birefringence; D003116:Color; D008027:Light; D010786:Photoreceptor Cells / Q000502:physiology*; D011896:Rana temporaria; D012168:Retinal Pigments; D013997:Time Factors
D012168:Retinal Pigments